diff options
Diffstat (limited to 'gcc/loop-unswitch.c')
| -rw-r--r-- | gcc/loop-unswitch.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/loop-unswitch.c b/gcc/loop-unswitch.c index a9089a6..4107048 100644 --- a/gcc/loop-unswitch.c +++ b/gcc/loop-unswitch.c @@ -257,6 +257,7 @@ unswitch_single_loop (struct loop *loop, rtx cond_checked, int num) rtx cond, rcond = NULL_RTX, conds, rconds, acond, cinsn; int repeat; edge e; + HOST_WIDE_INT iterations; /* Do not unswitch too much. */ if (num > PARAM_VALUE (PARAM_MAX_UNSWITCH_LEVEL)) @@ -299,7 +300,8 @@ unswitch_single_loop (struct loop *loop, rtx cond_checked, int num) } /* Nor if the loop usually does not roll. */ - if (expected_loop_iterations (loop) < 1) + iterations = estimated_loop_iterations_int (loop); + if (iterations >= 0 && iterations <= 1) { if (dump_file) fprintf (dump_file, ";; Not unswitching, loop iterations < 1\n"); |